/* Evolution calendar - iCalendar component object
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 * This library is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library. If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors: Federico Mena-Quintero <federico@ximian.com>
 */

#if !defined (__LIBECAL_H_INSIDE__) && !defined (LIBECAL_COMPILATION)
#error "Only <libecal/libecal.h> should be included directly."
#endif

#ifndef E_CAL_COMPONENT_H
#define E_CAL_COMPONENT_H

#include <time.h>
#include <glib-object.h>
#include <libical/ical.h>

/* Standard GObject macros */
#define E_TYPE_CAL_COMPONENT \
	(e_cal_component_get_type ())
#define E_CAL_COMPONENT(obj) \
	(G_TYPE_CHECK_INSTANCE_CAST \
	((obj), E_TYPE_CAL_COMPONENT, ECalComponent))
#define E_CAL_COMPONENT_CLASS(cls) \
	(G_TYPE_CHECK_CLASS_CAST \
	((cls), E_TYPE_CAL_COMPONENT, ECalComponentClass))
#define E_IS_CAL_COMPONENT(obj) \
	(G_TYPE_CHECK_INSTANCE_TYPE \
	((obj), E_TYPE_CAL_COMPONENT))
#define E_IS_CAL_COMPONENT_CLASS(cls) \
	(G_TYPE_CHECK_CLASS_TYPE \
	((cls), E_TYPE_CAL_COMPONENT))
#define E_CAL_COMPONENT_GET_CLASS(obj) \
	(G_TYPE_INSTANCE_GET_CLASS \
	((obj), E_TYPE_CAL_COMPONENT, ECalComponentClass))

G_BEGIN_DECLS

/**
 * ECalComponentId:
 * @uid: UID of the component
 * @rid: recurrence ID of the component; can be %NULL
 **/
typedef struct {
	gchar *uid;
	gchar *rid;
} ECalComponentId;

/**
 * ECalComponentVType:
 * @E_CAL_COMPONENT_NO_TYPE: Unknown or unsupported component type
 * @E_CAL_COMPONENT_EVENT: vEvent type
 * @E_CAL_COMPONENT_TODO: vTodo type
 * @E_CAL_COMPONENT_JOURNAL: vJournal type
 * @E_CAL_COMPONENT_FREEBUSY: vFreeBusy type
 * @E_CAL_COMPONENT_TIMEZONE: vTimezone type
 *
 * Types of calendar components to be stored by a ECalComponent, as per RFC 2445.
 * We don't put the alarm component type here since we store alarms as separate
 * structures inside the other "real" components.
 **/
typedef enum {
	E_CAL_COMPONENT_NO_TYPE,
	E_CAL_COMPONENT_EVENT,
	E_CAL_COMPONENT_TODO,
	E_CAL_COMPONENT_JOURNAL,
	E_CAL_COMPONENT_FREEBUSY,
	E_CAL_COMPONENT_TIMEZONE
} ECalComponentVType;

/**
 * ECalComponentField:
 * @E_CAL_COMPONENT_FIELD_CATEGORIES: Concatenation of categories
 * @E_CAL_COMPONENT_FIELD_CLASSIFICATION: Classification
 * @E_CAL_COMPONENT_FIELD_COMPLETED: Completed
 * @E_CAL_COMPONENT_FIELD_DTEND: Dtend
 * @E_CAL_COMPONENT_FIELD_DTSTART: Dtstart
 * @E_CAL_COMPONENT_FIELD_DUE: Due
 * @E_CAL_COMPONENT_FIELD_GEO: Geo
 * @E_CAL_COMPONENT_FIELD_PERCENT: Percent
 * @E_CAL_COMPONENT_FIELD_PRIORITY: Priority
 * @E_CAL_COMPONENT_FIELD_SUMMARY: Summary
 * @E_CAL_COMPONENT_FIELD_TRANSPARENCY: Transparency
 * @E_CAL_COMPONENT_FIELD_URL: URL
 * @E_CAL_COMPONENT_FIELD_HAS_ALARMS: not a real field
 * @E_CAL_COMPONENT_FIELD_ICON: not a real field
 * @E_CAL_COMPONENT_FIELD_COMPLETE: not a real field
 * @E_CAL_COMPONENT_FIELD_RECURRING: not a real field
 * @E_CAL_COMPONENT_FIELD_OVERDUE: not a real field
 * @E_CAL_COMPONENT_FIELD_COLOR: not a real field
 * @E_CAL_COMPONENT_FIELD_STATUS: Status
 * @E_CAL_COMPONENT_FIELD_COMPONENT: not a real field
 * @E_CAL_COMPONENT_FIELD_LOCATION: Location
 * @E_CAL_COMPONENT_FIELD_NUM_FIELDS: the last member
 *
 * Field identifiers for a calendar component.
 **/

/*
 * NOTE: These are also used in the ETable specification, and the column
 *       numbers are saved in the user settings file. So don't reorder them!
 */
typedef enum {
	E_CAL_COMPONENT_FIELD_CATEGORIES,	/* concatenation of categories */
	E_CAL_COMPONENT_FIELD_CLASSIFICATION,
	E_CAL_COMPONENT_FIELD_COMPLETED,
	E_CAL_COMPONENT_FIELD_DTEND,
	E_CAL_COMPONENT_FIELD_DTSTART,
	E_CAL_COMPONENT_FIELD_DUE,
	E_CAL_COMPONENT_FIELD_GEO,
	E_CAL_COMPONENT_FIELD_PERCENT,
	E_CAL_COMPONENT_FIELD_PRIORITY,
	E_CAL_COMPONENT_FIELD_SUMMARY,
	E_CAL_COMPONENT_FIELD_TRANSPARENCY,
	E_CAL_COMPONENT_FIELD_URL,
	E_CAL_COMPONENT_FIELD_HAS_ALARMS,	/* not a real field */
	E_CAL_COMPONENT_FIELD_ICON,		/* not a real field */
	E_CAL_COMPONENT_FIELD_COMPLETE,		/* not a real field */
	E_CAL_COMPONENT_FIELD_RECURRING,	/* not a real field */
	E_CAL_COMPONENT_FIELD_OVERDUE,		/* not a real field */
	E_CAL_COMPONENT_FIELD_COLOR,		/* not a real field */
	E_CAL_COMPONENT_FIELD_STATUS,
	E_CAL_COMPONENT_FIELD_COMPONENT,	/* not a real field */
	E_CAL_COMPONENT_FIELD_LOCATION,
	E_CAL_COMPONENT_FIELD_NUM_FIELDS
} ECalComponentField;

/* Structures and enumerations to return properties and their parameters */

/**
 * ECalComponentClassification:
 * @E_CAL_COMPONENT_CLASS_NONE: None
 * @E_CAL_COMPONENT_CLASS_PUBLIC: Public
 * @E_CAL_COMPONENT_CLASS_PRIVATE: Private
 * @E_CAL_COMPONENT_CLASS_CONFIDENTIAL: Confidential
 * @E_CAL_COMPONENT_CLASS_UNKNOWN: Unknown
 *
 * CLASSIFICATION property
 **/
typedef enum {
	E_CAL_COMPONENT_CLASS_NONE,
	E_CAL_COMPONENT_CLASS_PUBLIC,
	E_CAL_COMPONENT_CLASS_PRIVATE,
	E_CAL_COMPONENT_CLASS_CONFIDENTIAL,
	E_CAL_COMPONENT_CLASS_UNKNOWN
} ECalComponentClassification;

/* Properties that have time and timezone information */
/**
 * ECalComponentDateTime:
 * @value: an icaltimetype value
 * @tzid: a timezone ID for the @value
 *
 * Time with timezone property
 **/
typedef struct {
	/* Actual date/time value */
	struct icaltimetype *value;

	/* Timezone ID */
	const gchar *tzid;
} ECalComponentDateTime;

/**
 * ECalComponentPeriodType:
 * @E_CAL_COMPONENT_PERIOD_DATETIME: Date and time
 * @E_CAL_COMPONENT_PERIOD_DURATION: Duration
 *
 * Way in which a period of time is specified
 **/
typedef enum {
	E_CAL_COMPONENT_PERIOD_DATETIME,
	E_CAL_COMPONENT_PERIOD_DURATION
} ECalComponentPeriodType;

/**
 * ECalComponentPeriod:
 * @type: An #ECalComponentPeriodType
 * @start: When the period starts
 *
 * Period of time, can have explicit start/end times or start/duration instead
 **/
typedef struct {
	ECalComponentPeriodType type;

	struct icaltimetype start;

	union {
		struct icaltimetype end;
		struct icaldurationtype duration;
	} u;
} ECalComponentPeriod;

/**
 * ECalComponentRangeType:
 * @E_CAL_COMPONENT_RANGE_SINGLE: Single
 * @E_CAL_COMPONENT_RANGE_THISPRIOR: This and prior
 * @E_CAL_COMPONENT_RANGE_THISFUTURE: This and future
 *
 * The type of range
 **/
typedef enum {
	E_CAL_COMPONENT_RANGE_SINGLE,
	E_CAL_COMPONENT_RANGE_THISPRIOR,
	E_CAL_COMPONENT_RANGE_THISFUTURE
} ECalComponentRangeType;

/**
 * ECalComponentRange:
 * @type: an #ECalComponentRangeType
 * @datetime: an #ECalComponentDateTime of the range
 *
 * Describes a range
 **/
typedef struct {
	ECalComponentRangeType type;

	ECalComponentDateTime datetime;
} ECalComponentRange;

/**
 * ECalComponentText:
 * @value: Description string
 * @altrep: Alternate representation URI
 *
 * For the text properties
 **/
typedef struct {
	/* Description string */
	const gchar *value;

	/* Alternate representation URI */
	const gchar *altrep;
} ECalComponentText;

/**
 * ECalComponentTransparency:
 * @E_CAL_COMPONENT_TRANSP_NONE: None
 * @E_CAL_COMPONENT_TRANSP_TRANSPARENT: Transparent
 * @E_CAL_COMPONENT_TRANSP_OPAQUE: Opaque
 * @E_CAL_COMPONENT_TRANSP_UNKNOWN: Unknown
 *
 * Time transparency
 **/
typedef enum {
	E_CAL_COMPONENT_TRANSP_NONE,
	E_CAL_COMPONENT_TRANSP_TRANSPARENT,
	E_CAL_COMPONENT_TRANSP_OPAQUE,
	E_CAL_COMPONENT_TRANSP_UNKNOWN
} ECalComponentTransparency;

/**
 * ECalComponentAttendee:
 * @value: usually a "mailto:email" of the attendee
 * @member: Member
 * @cutype: Type of the attendee
 * @role: Role of the attendee
 * @status: Current status of the attendee
 * @rsvp: Whether requires RSVP
 * @delto: Delegated to
 * @delfrom: Delegated from
 * @sentby: Sent by
 * @cn: Common name
 * @language: Language
 *
 * Describes an attendee
 **/
typedef struct {
	const gchar *value;

	const gchar *member;
	icalparameter_cutype cutype;
	icalparameter_role role;
	icalparameter_partstat status;
	gboolean rsvp;

	const gchar *delto;
	const gchar *delfrom;
	const gchar *sentby;
	const gchar *cn;
	const gchar *language;
} ECalComponentAttendee;

/**
 * ECalComponentOrganizer:
 * @value: usually a "mailto:email" of the organizer
 * @sentby: Sent by
 * @cn: Common name
 * @language: Language
 *
 * Describes an organizer
 **/
typedef struct {
	const gchar *value;
	const gchar *sentby;
	const gchar *cn;
	const gchar *language;
} ECalComponentOrganizer;

/* Main calendar component object */

typedef struct _ECalComponent ECalComponent;
typedef struct _ECalComponentClass ECalComponentClass;
typedef struct _ECalComponentPrivate ECalComponentPrivate;

struct _ECalComponent {
	/*< private >*/
	GObject parent;
	ECalComponentPrivate *priv;
};

struct _ECalComponentClass {
	/*< private >*/
	GObjectClass parent_class;
};

/* Calendar component */

GType		e_cal_component_get_type	(void);

gchar *		e_cal_component_gen_uid		(void);

ECalComponent *	e_cal_component_new		(void);
ECalComponent *	e_cal_component_new_from_string	(const gchar *calobj);
ECalComponent *	e_cal_component_new_from_icalcomponent
						(icalcomponent *icalcomp);

ECalComponent *	e_cal_component_clone		(ECalComponent *comp);

void		e_cal_component_set_new_vtype	(ECalComponent *comp,
						 ECalComponentVType type);

icalcomponent *	e_cal_component_get_icalcomponent
						(ECalComponent *comp);
gboolean	e_cal_component_set_icalcomponent
						(ECalComponent *comp,
						 icalcomponent *icalcomp);
void		e_cal_component_rescan		(ECalComponent *comp);
void		e_cal_component_strip_errors	(ECalComponent *comp);

ECalComponentVType
		e_cal_component_get_vtype	(ECalComponent *comp);

gchar *		e_cal_component_get_as_string	(ECalComponent *comp);

void		e_cal_component_commit_sequence	(ECalComponent *comp);
void		e_cal_component_abort_sequence	(ECalComponent *comp);

void		e_cal_component_get_uid		(ECalComponent *comp,
						 const gchar **uid);
void		e_cal_component_set_uid		(ECalComponent *comp,
						 const gchar *uid);

ECalComponentId *
		e_cal_component_get_id		(ECalComponent *comp);
void		e_cal_component_free_id		(ECalComponentId *id);
ECalComponentId *
		e_cal_component_id_new		(const gchar *uid,
						 const gchar *rid);
ECalComponentId *
		e_cal_component_id_copy		(const ECalComponentId *id);
guint		e_cal_component_id_hash		(const ECalComponentId *id);
gboolean	e_cal_component_id_equal	(const ECalComponentId *id1,
						 const ECalComponentId *id2);

void		e_cal_component_get_categories	(ECalComponent *comp,
						 const gchar **categories);
void		e_cal_component_set_categories	(ECalComponent *comp,
						 const gchar *categories);
void		e_cal_component_get_categories_list
						(ECalComponent *comp,
						 GSList **categ_list);
void		e_cal_component_set_categories_list
						(ECalComponent *comp,
						 GSList *categ_list);

void		e_cal_component_get_classification
						(ECalComponent *comp,
						 ECalComponentClassification *classif);
void		e_cal_component_set_classification
						(ECalComponent *comp,
						 ECalComponentClassification classif);

void		e_cal_component_get_comment_list
						(ECalComponent *comp,
						 GSList **text_list);
void		e_cal_component_set_comment_list
						(ECalComponent *comp,
						 GSList *text_list);

void		e_cal_component_get_completed	(ECalComponent *comp,
						 struct icaltimetype **t);
void		e_cal_component_set_completed	(ECalComponent *comp,
						 struct icaltimetype *t);

void		e_cal_component_get_contact_list
						(ECalComponent *comp,
						 GSList **text_list);
void		e_cal_component_set_contact_list
						(ECalComponent *comp,
						 GSList *text_list);

void		e_cal_component_get_created	(ECalComponent *comp,
						 struct icaltimetype **t);
void		e_cal_component_set_created	(ECalComponent *comp,
						 struct icaltimetype *t);

void		e_cal_component_get_description_list
						(ECalComponent *comp,
						 GSList **text_list);
void		e_cal_component_set_description_list
						(ECalComponent *comp,
						 GSList *text_list);

void		e_cal_component_get_dtend	(ECalComponent *comp,
						 ECalComponentDateTime *dt);
void		e_cal_component_set_dtend	(ECalComponent *comp,
						 ECalComponentDateTime *dt);

void		e_cal_component_get_dtstamp	(ECalComponent *comp,
						 struct icaltimetype *t);
void		e_cal_component_set_dtstamp	(ECalComponent *comp,
						 struct icaltimetype *t);

void		e_cal_component_get_dtstart	(ECalComponent *comp,
						 ECalComponentDateTime *dt);
void		e_cal_component_set_dtstart	(ECalComponent *comp,
						 ECalComponentDateTime *dt);

void		e_cal_component_get_due		(ECalComponent *comp,
						 ECalComponentDateTime *dt);
void		e_cal_component_set_due		(ECalComponent *comp,
						 ECalComponentDateTime *dt);

void		e_cal_component_get_exdate_list	(ECalComponent *comp,
						 GSList **exdate_list);
void		e_cal_component_set_exdate_list	(ECalComponent *comp,
						 GSList *exdate_list);
gboolean	e_cal_component_has_exdates	(ECalComponent *comp);

void		e_cal_component_get_exrule_list	(ECalComponent *comp,
						 GSList **recur_list);
void		e_cal_component_get_exrule_property_list
						(ECalComponent *comp,
						 GSList **recur_list);
void		e_cal_component_set_exrule_list	(ECalComponent *comp,
						 GSList *recur_list);
gboolean	e_cal_component_has_exrules	(ECalComponent *comp);

gboolean	e_cal_component_has_exceptions	(ECalComponent *comp);

void		e_cal_component_get_geo		(ECalComponent *comp,
						 struct icalgeotype **geo);
void		e_cal_component_set_geo		(ECalComponent *comp,
						 struct icalgeotype *geo);

void		e_cal_component_get_last_modified
						(ECalComponent *comp,
						 struct icaltimetype **t);
void		e_cal_component_set_last_modified
						(ECalComponent *comp,
						 struct icaltimetype *t);

void		e_cal_component_get_organizer	(ECalComponent *comp,
						 ECalComponentOrganizer *organizer);
void		e_cal_component_set_organizer	(ECalComponent *comp,
						 ECalComponentOrganizer *organizer);
gboolean	e_cal_component_has_organizer	(ECalComponent *comp);

gint		e_cal_component_get_percent_as_int
						(ECalComponent *comp);
void		e_cal_component_set_percent_as_int
						(ECalComponent *comp,
						 gint percent);

void		e_cal_component_get_percent	(ECalComponent *comp,
						 gint **percent);
void		e_cal_component_set_percent	(ECalComponent *comp,
						 gint *percent);

void		e_cal_component_get_priority	(ECalComponent *comp,
						 gint **priority);
void		e_cal_component_set_priority	(ECalComponent *comp,
						 gint *priority);

void		e_cal_component_get_recurid	(ECalComponent *comp,
						 ECalComponentRange *recur_id);
gchar *		e_cal_component_get_recurid_as_string
						(ECalComponent *comp);
void		e_cal_component_set_recurid	(ECalComponent *comp,
						 ECalComponentRange *recur_id);

void		e_cal_component_get_rdate_list	(ECalComponent *comp,
						 GSList **period_list);
void		e_cal_component_set_rdate_list	(ECalComponent *comp,
						 GSList *period_list);
gboolean	e_cal_component_has_rdates	(ECalComponent *comp);

void		e_cal_component_get_rrule_list	(ECalComponent *comp,
						 GSList **recur_list);
void		e_cal_component_get_rrule_property_list
						(ECalComponent *comp,
						 GSList **recur_list);
void		e_cal_component_set_rrule_list	(ECalComponent *comp,
						 GSList *recur_list);
gboolean	e_cal_component_has_rrules	(ECalComponent *comp);

gboolean	e_cal_component_has_recurrences	(ECalComponent *comp);
gboolean	e_cal_component_has_simple_recurrence
						(ECalComponent *comp);
gboolean	e_cal_component_is_instance	(ECalComponent *comp);

void		e_cal_component_get_sequence	(ECalComponent *comp,
						 gint **sequence);
void		e_cal_component_set_sequence	(ECalComponent *comp,
						 gint *sequence);

void		e_cal_component_get_status	(ECalComponent *comp,
						 icalproperty_status *status);
void		e_cal_component_set_status	(ECalComponent *comp,
						 icalproperty_status status);

void		e_cal_component_get_summary	(ECalComponent *comp,
						 ECalComponentText *summary);
void		e_cal_component_set_summary	(ECalComponent *comp,
						 ECalComponentText *summary);

void		e_cal_component_get_transparency
						(ECalComponent *comp,
						 ECalComponentTransparency *transp);
void		e_cal_component_set_transparency
						(ECalComponent *comp,
						 ECalComponentTransparency transp);

void		e_cal_component_get_url		(ECalComponent *comp,
						 const gchar **url);
void		e_cal_component_set_url		(ECalComponent *comp,
						 const gchar *url);

void		e_cal_component_get_attendee_list
						(ECalComponent *comp,
						 GSList **attendee_list);
void		e_cal_component_set_attendee_list
						(ECalComponent *comp,
						 GSList *attendee_list);
gboolean	e_cal_component_has_attendees	(ECalComponent *comp);

void		e_cal_component_get_location	(ECalComponent *comp,
						 const gchar **location);
void		e_cal_component_set_location	(ECalComponent *comp,
						 const gchar *location);

/* Attachment handling */
void		e_cal_component_get_attachment_list
						(ECalComponent *comp,
						 GSList **attachment_list);
void		e_cal_component_set_attachment_list
						(ECalComponent *comp,
						 GSList *attachment_list);
gboolean	e_cal_component_has_attachments	(ECalComponent *comp);
gint		e_cal_component_get_num_attachments
						(ECalComponent *comp);

gboolean	e_cal_component_event_dates_match
						(ECalComponent *comp1,
						 ECalComponent *comp2);

/* Functions to free returned values */

void		e_cal_component_free_categories_list
						(GSList *categ_list);
void		e_cal_component_free_datetime	(ECalComponentDateTime *dt);
void		e_cal_component_free_range	(ECalComponentRange *range);
void		e_cal_component_free_exdate_list
						(GSList *exdate_list);
void		e_cal_component_free_geo	(struct icalgeotype *geo);
void		e_cal_component_free_icaltimetype
						(struct icaltimetype *t);
void		e_cal_component_free_percent	(gint *percent);
void		e_cal_component_free_priority	(gint *priority);
void		e_cal_component_free_period_list
						(GSList *period_list);
void		e_cal_component_free_recur_list	(GSList *recur_list);
void		e_cal_component_free_sequence	(gint *sequence);
void		e_cal_component_free_text_list	(GSList *text_list);
void		e_cal_component_free_attendee_list
						(GSList *attendee_list);

/* Alarms */

/* Opaque structure used to represent alarm subcomponents */
typedef struct _ECalComponentAlarm ECalComponentAlarm;

/**
 * ECalComponentAlarmInstance:
 * @auid: UID of the alarm
 * @trigger: Trigger time, i.e. "5 minutes before the appointment"
 * @occur_start: Actual event occurrence start to which this trigger corresponds
 * @occur_end: Actual event occurrence end to which this trigger corresponds
 *
 * An alarm occurrence, i.e. a trigger instance
 **/
typedef struct {
	/* UID of the alarm that triggered */
	gchar *auid;

	/* Trigger time, i.e. "5 minutes before the appointment" */
	time_t trigger;

	/* Actual event occurrence to which this trigger corresponds */
	time_t occur_start;
	time_t occur_end;
} ECalComponentAlarmInstance;

/**
 * ECalComponentAlarms:
 * @comp: The actual alarm component
 * @alarms: (element-type: ECalComponentAlarmInstance): List of #ECalComponentAlarmInstance structures
 *
 * Alarm trigger instances for a particular component
 **/
typedef struct {
	/* The actual component */
	ECalComponent *comp;

	/* List of ECalComponentAlarmInstance structures */
	GSList *alarms;
} ECalComponentAlarms;

/**
 * ECalComponentAlarmAction:
 * @E_CAL_COMPONENT_ALARM_NONE: None
 * @E_CAL_COMPONENT_ALARM_AUDIO: Audio
 * @E_CAL_COMPONENT_ALARM_DISPLAY: Display message
 * @E_CAL_COMPONENT_ALARM_EMAIL: Email
 * @E_CAL_COMPONENT_ALARM_PROCEDURE: Procedure
 * @E_CAL_COMPONENT_ALARM_UNKNOWN: Unknown
 *
 * Alarm types
 **/
typedef enum {
	E_CAL_COMPONENT_ALARM_NONE,
	E_CAL_COMPONENT_ALARM_AUDIO,
	E_CAL_COMPONENT_ALARM_DISPLAY,
	E_CAL_COMPONENT_ALARM_EMAIL,
	E_CAL_COMPONENT_ALARM_PROCEDURE,
	E_CAL_COMPONENT_ALARM_UNKNOWN
} ECalComponentAlarmAction;

/**
 * ECalComponentAlarmTriggerType:
 * @E_CAL_COMPONENT_ALARM_TRIGGER_NONE: None
 * @E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_START: Relative to the start
 * @E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_END: Relative to the end
 * @E_CAL_COMPONENT_ALARM_TRIGGER_ABSOLUTE: Absolute
 *
 * Whether a trigger is relative to the start or end of an event occurrence, or
 * whether it is specified to occur at an absolute time.
 */
typedef enum {
	E_CAL_COMPONENT_ALARM_TRIGGER_NONE,
	E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_START,
	E_CAL_COMPONENT_ALARM_TRIGGER_RELATIVE_END,
	E_CAL_COMPONENT_ALARM_TRIGGER_ABSOLUTE
} ECalComponentAlarmTriggerType;

/**
 * ECalComponentAlarmTrigger:
 * @type: An #ECalComponentAlarmTriggerType
 *
 * When the alarm is supposed to be triggered
 **/
typedef struct {
	ECalComponentAlarmTriggerType type;

	union {
		struct icaldurationtype rel_duration;
		struct icaltimetype abs_time;
	} u;
} ECalComponentAlarmTrigger;

/**
 * ECalComponentAlarmRepeat:
 * @repetitions: Number of extra repetitions, zero for none
 * @duration: Interval between repetitions
 *
 * Whether and how the alarm repeats.
 **/
typedef struct {
	/* Number of extra repetitions, zero for none */
	gint repetitions;

	/* Interval between repetitions */
	struct icaldurationtype duration;
} ECalComponentAlarmRepeat;

gboolean	e_cal_component_has_alarms	(ECalComponent *comp);
void		e_cal_component_add_alarm	(ECalComponent *comp,
						 ECalComponentAlarm *alarm);
void		e_cal_component_remove_alarm	(ECalComponent *comp,
						 const gchar *auid);
void		e_cal_component_remove_all_alarms
						(ECalComponent *comp);

GList *		e_cal_component_get_alarm_uids	(ECalComponent *comp);
ECalComponentAlarm *
		e_cal_component_get_alarm	(ECalComponent *comp,
						 const gchar *auid);

void		e_cal_component_alarms_free	(ECalComponentAlarms *alarms);

/* ECalComponentAlarms */
ECalComponentAlarm *
		e_cal_component_alarm_new	(void);
ECalComponentAlarm *
		e_cal_component_alarm_clone	(ECalComponentAlarm *alarm);
void		e_cal_component_alarm_free	(ECalComponentAlarm *alarm);

const gchar *	e_cal_component_alarm_get_uid	(ECalComponentAlarm *alarm);

void		e_cal_component_alarm_get_action
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmAction *action);
void		e_cal_component_alarm_set_action
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmAction action);

void		e_cal_component_alarm_get_attach
						(ECalComponentAlarm *alarm,
						 icalattach **attach);
void		e_cal_component_alarm_set_attach
						(ECalComponentAlarm *alarm,
						 icalattach *attach);

void		e_cal_component_alarm_get_description
						(ECalComponentAlarm *alarm,
						 ECalComponentText *description);
void		e_cal_component_alarm_set_description
						(ECalComponentAlarm *alarm,
						 ECalComponentText *description);

void		e_cal_component_alarm_get_repeat
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmRepeat *repeat);
void		e_cal_component_alarm_set_repeat
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmRepeat repeat);

void		e_cal_component_alarm_get_trigger
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmTrigger *trigger);
void		e_cal_component_alarm_set_trigger
						(ECalComponentAlarm *alarm,
						 ECalComponentAlarmTrigger trigger);

void		e_cal_component_alarm_get_attendee_list
						(ECalComponentAlarm *alarm,
						 GSList **attendee_list);
void		e_cal_component_alarm_set_attendee_list
						(ECalComponentAlarm *alarm,
						 GSList *attendee_list);
gboolean	e_cal_component_alarm_has_attendees
						(ECalComponentAlarm *alarm);

icalcomponent *	e_cal_component_alarm_get_icalcomponent
						(ECalComponentAlarm *alarm);

G_END_DECLS

#endif /* E_CAL_COMPONENT_H */
